I made note of tidal power progress in Maine a while back, and now it’s Scotland’s turn. The Scottish government just released its green-lit plans to power as many as 42,000 homes with tidal energy—-the biggest of its kind in Europe. Good news for renewable energy fans. There are, unfortunately, possible negative ramifications for ocean ecology and human use of nearby areas—certain fish and ocean mammals could be disrupted, turbines can be noisy, etc. But in terms of reducing the carbon intensity of energy generation, this is another gratifying moment in the grand narrative of progress toward sustainability.
The US Department of Energy and the Department of the Interior’s Bureau of Land Management have released the “Final Programmatic Environmental Impact Statement” (FPEIS) for utility-scale solar energy operations on public lands in Arizona, California, Colorado, Nevada, Utah, and New Mexico. This “solar roadmap” estimates we will be able to harness 23,700 megawatts from 285,000 acres of developed lands, enough to power 7 million US homes with renewable energy.
285,000 acres might sound substantial, but everything we do involves trade offs. Deciding to pursue one opportunity inherently means not pursuing another, hence the name opportunity cost. But 285,000 acres only make up one ten-thousandth of the United States’ total acreage, meaning that from one hundredth of one percent of our land we could supply power to 2.3% of our country’s population. Seems like a good trade off to me. To the sun god!
A colleague of mine from Bard CEP posted this TED Talk by Justin Hall-Tipping in reply to my post on Donald Sagoway’s liquid metal battery. Hall-Tipping presents on carbon nanotechnology and grid-free solar energy — a truly invigorating watch. It’s ingenuity and creativity of this kind that keeps my romanticizing primitivism in check. Cheers!